This is the Comal CO-02 by Rustic River Park Homes.
If you like the idea of going tinier and having something portable, consider a park model. Even though these aren’t “easy” to transport, they are mobile, but offer you more space! This is one of Rustic River’s best-selling models. See below for all the standard features and available upgrades for this particular model.
Related: 396 Square Feet Double Loft Park Model Cabin